The Electromagnetic Scatterimg Similitude for the Model Measurements of Lossy Target

Liu Tiejun; Zbang Xiangyang

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The Electromagnetic Scatterimg Similitude for the Model Measurements of Lossy Target

更新时间：2025-12-08

- The Electromagnetic Scatterimg Similitude for the Model Measurements of Lossy Target
- Acta Electronica Sinica Issue 12, Pages: 12-19(1992)
- 作者机构：
  
  1. 北京环境特性研究所
  2. 北京环境特性研究所北京 100854
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1992
- 稿件说明：
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[1]刘铁军,张向阳.有耗目标电磁散射缩比测量的相似律研究[J].电子学报,1992(12):12-19.

Liu Tiejun, Zbang Xiangyang. The Electromagnetic Scatterimg Similitude for the Model Measurements of Lossy Target[J]. Acta Electronica Sinica, 1992, (12): 12-19.
[1]刘铁军,张向阳.有耗目标电磁散射缩比测量的相似律研究[J].电子学报,1992(12):12-19. DOI：

Liu Tiejun, Zbang Xiangyang. The Electromagnetic Scatterimg Similitude for the Model Measurements of Lossy Target[J]. Acta Electronica Sinica, 1992, (12): 12-19. DOI：

摘要

本文提出了三个对有耗介质目标进行散射缩比测量时

所应遵循的相似法则。只要满足其中一个相似法则

就可以把所测的模型雷达散射截面（RCS）变换为原型的RCS。文中给出了三个相似法则的使用范围

相似条件及RCS诱导相似比。对第一相似律进行了实验验证

结果表明:原型的实测结果与由模型测量结果所变换的原型结果吻合很好

变换误差为1～2dB。同时

用电磁介质涂敷金属球的精确解

对三个相似律进行了验证

结果表明

第二、第三相似律可适用于全频段

变换误差小于1dB。第一相似律只适用于光学区

在Rayleign区和谐振区有较大误差。

Abstract

In this paper three electromagnetic scattering similitude laws for the model measurements of lossy target are presented. The Radar Cross Section（RCS） of the measured model can be transfered to the RCS of the full-size target （prototype） by using one of the similitude laws.The scope of application

similarity requirement

induced similarity ratio of RCS and experimentel results for the three similitude laws are also given. The experimental re-sults for the first similitude law shows that the agreement between measured result of the prototype and the result transfered through the modelling measurement is very good. The transfered error is about 1-2 dB. The exact solution of the conducting sphere coated with dielectric material is also used to verify the three laws. The second and the third laws can be uaed in the full band with transfer error less than 1 dB. The first law can only be used in optics region and there is large error in the Rayleigh and resonant region.

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